Robin's Egg Blue

Q: How do I use #21D8DE in CSS?

You can use #21D8DE in CSS with: background-color: #21D8DE; or color: #21D8DE; or as an RGB value: rgb(33, 216, 222). For print design, use CMYK: 85%, 3%, 0%, 13%.

#21D8DE

Robin's Egg Blue is a cool medium color with the hex code #21D8DE. This vibrant hue can be represented as RGB 33, 216, 222 in digital design or CMYK 85%, 3%, 0%, 13% for print applications. Find matching Pantone color.

Robin's Egg Blue color values

HEX: #21D8DE
RGB: 33, 216, 222
HSL: 182°, 74%, 50%
CMYK: 85, 3, 0, 13

Shades & tints

Darker Lighter

About this color

Robin's Egg Blue sits at 182° on the color wheel with 74% saturation and 50% lightness, placing it in the cyan segment of the spectrum. At 74% saturation, the hue is fully legible and confident — richly chromatic without tipping into high-contrast territory. Its mid-range lightness positions it as a mid-tone: neither a background color nor a deep accent, but something in between.

In digital environments, Robin's Egg Blue is rendered as rgb(33, 216, 222), where the blue channel is highest at 222, though it sits close to the other channels. The mid-range lightness and strong saturation make this versatile for both foreground and background roles, depending on what it is paired against.

For print, Robin's Egg Blue translates to a CMYK breakdown of 85C 3M 0Y 13K. The low-to-moderate black value (13%) means the color's character in print comes primarily from its cyan ink content (85%), with black serving as a supporting shadow tone. No brands in the brandkit.pro library currently specify this exact hex as a named brand color.

Color harmonies

Complementary

Analogous

Triadic

Split-Complementary

How to use Robin's Egg Blue

CSS Variable

:root {
  --brand-primary: #21D8DE;
  --brand-primary-rgb: 33, 216, 222;
}

Define as a CSS custom property for consistent theming across your site.

Tailwind Config

colors: {
  brand: '#21D8DE',
}

Add to your Tailwind config to use classes like bg-brand.

Print Design (CMYK)

C: 85%
M: 3%
Y: 0%
K: 13%

Use these CMYK values in Adobe Illustrator, InDesign, or print specifications.

RGB for Screens

rgb(33, 216, 222)
rgba(33, 216, 222, 0.8)

Use RGB notation for compatibility or add alpha channel for transparency.

Brands using similar hue

24 brand s with colors near 182° on the color wheel

Frequently asked questions

What color is #21D8DE?

#21D8DE is Robin's Egg Blue, a cool medium color with RGB values of 33, 216, 222. It has a hue of 182°, 74% saturation, and 50% lightness in the HSL color space.

What is the RGB value of #21D8DE?

The RGB color code for #21D8DE is rgb(33, 216, 222). This means it contains 33 red, 216 green, and 222 blue in the RGB color model.

Is Robin's Egg Blue a warm or cool color?

Robin's Egg Blue (#21D8DE) is a cool color with a hue between 120-300° on the color wheel.

How do I use #21D8DE in CSS?

You can use #21D8DE in CSS with: background-color: #21D8DE; or color: #21D8DE; or as an RGB value: rgb(33, 216, 222). For print design, use CMYK: 85%, 3%, 0%, 13%.